Dynamics of beam halo in mismatched beams

Conference · Sun Sep 01 00:00:00 EDT 1996

OSTI ID:377619

Wangler, T P; Garnett, R W; Gray, E R; Ryne, R D; Wang, T S ^[1]

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1. Accelerator Operations and Technology Division, Los Alamos National Laboratory, Los Alamos, NM (United States)

High-power proton linacs for nuclear materials transmutation and production, and new accelerator-driven neutron spallation sources must be designed to control beam-halo formation, which leads to beam loss. The study of particle-core models is leading to a better understanding of the causes and characteristics of beam halo produced by space-charge forces in rms mismatched beams. Detailed studies of the models have resulted in predictions of the dependence of the maximum amplitude of halo particles on a mismatch parameter and on the space-charge tune-depression ratio. Scaling formulas have been derived which will provide guidance for choosing the aperture radius to contain the halo without loss.

• Research Organization: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 377619
• Report Number(s): LA-UR-96-2842; CONF-9608123-10; ON: DE96014825; TRN: 96:025592
• Resource Relation: Conference: 18. international linac conference, Geneva (Switzerland), 26-30 Aug 1996; Other Information: PBD: [1996]
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
LINEAR ACCELERATORS
BEAM DYNAMICS
LOSSES
PROTON BEAMS
TRANSMUTATION
PARTICLE LOSSES
NEUTRON SOURCES